YanniD said:
An Oppo 93 and above will output 1080p24 from 720p24
Actually not entirely true. In the same firmware that removed ISO support on the 93, a bug was fixed with the side-effect that 720p24 could no longer be output as 1080p24. As far as I know, it's not fixed yet and may not be fixable, as I believe the two bugs are two sides of the same hardware bug. If you still have the ISO firmware, you're fine, but then you have the other scaling bug and any other bugs fixed since.